US9192847B2 - Ski brake - Google Patents
Ski brake Download PDFInfo
- Publication number
- US9192847B2 US9192847B2 US14/370,993 US201214370993A US9192847B2 US 9192847 B2 US9192847 B2 US 9192847B2 US 201214370993 A US201214370993 A US 201214370993A US 9192847 B2 US9192847 B2 US 9192847B2
- Authority
- US
- United States
- Prior art keywords
- ski
- retaining element
- plate
- piece
- binding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000027455 binding Effects 0.000 claims abstract description 71
- 238000009739 binding Methods 0.000 claims abstract description 71
- 229920002457 flexible plastic Polymers 0.000 description 11
- 238000005452 bending Methods 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
- A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
- A63C7/1006—Ski-stoppers
- A63C7/1013—Ski-stoppers actuated by the boot
- A63C7/102—Ski-stoppers actuated by the boot articulated about one transverse axis
- A63C7/1026—Ski-stoppers actuated by the boot articulated about one transverse axis laterally retractable above the ski surface
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C9/00—Ski bindings
- A63C9/20—Non-self-releasing bindings with special sole edge holders instead of toe-straps
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C2201/00—Use of skates, skis, roller-skates, snowboards and courts
- A63C2201/06—Telemark
Definitions
- the invention relates to a ski brake in accordance with the preamble of claim 1 .
- bindings for touring, telemark or cross-country skis differ from alpine bindings in that the heel of the ski boot must be movable and the binding must be capable of permitting advantageous and correct bending of the ski boot.
- the ski boot and binding must be able to interact in such a way that the telemark position can be assumed in a correct and comfortable manner, whilst the torsional stiffness and/or twisting stiffness is as great as possible so as to obtain good turning properties.
- the combination of ski boot and binding should be adapted so that the system is comfortable to walk with in terrain and walk uphill with.
- ski binding where the ski boot is held between a front and a rear fixing element in such a way that the heel is freely liftable, and where the front and rear fastening elements are pivotally mounted relative to the binding and the ski.
- a binding of this kind combines the aforementioned properties in an optimal manner.
- the binding has two modes, a downhill mode and a walking mode. In the downhill mode, the pivotability the ski binding is partially limited so that the torsional stiffness of the binding system and the control of the ski are optimal. In walking mode, the front part of the ski binding is released so that maximum pivotability is obtained.
- a good binding system should comprise a release mechanism and a so-called ski brake. If or when the skier falls in such a way that knees or other body joints are subjected to extreme twisting forces, the binding system must be capable of releasing. When the binding system has released, it must not be possible for the ski to slide away freely. Firstly, the ski could pose a substantial safety risk to people and objects in the fall line of the loose ski. Secondly, the skier themself will be exposed to a risk if he or she cannot find their ski again after a fall.
- the ski brake should function independently of whether the ski binding is in a downhill or touring mode.
- ski brake adapted to a binding system according to NO 326646.
- the ski brake according to NO 328592 is disposed between an upper surface of the ski and a flat/planar connecting part, with an actuating part of the ski brake in direct contact with the underside of the front end of the ski boot sole, with the result that when the front end of the ski boot is fixed in the front retaining element of the binding, the ski brake will be inactive, and when the binding releases and the front end of the ski boot leaves the front retaining element, the ski brake is activated.
- An embodiment of the ski brake according to NO 328592 is designed as a resilient pivoted lever which has a front part (the actuating part) that forms contact with the sole of the ski boot via an opening in the flat/planar connecting part when the binding is in use, a middle region comprising an axle and a back region behind the axle that is U-shaped. It is the arms of the U-shaped part that constitute the braking means when the ski brake is actuated, a tensioning means acting to press the arms of the U-shaped part down past the gliding plane of the ski when the ski brake is actuated.
- the middle region comprising an axle forms a centre of rotation that defines an arcuate circular sector path that the actuating front part follows.
- the principle of the ski brake is basically that the ski boot blocks the movement of the actuating front part along the circular sector as long as the ski boot is fixed in the front retaining element of the binding.
- the present invention constitutes a further development and/or improvement of the ski brake referred to in NO 328592.
- a problem that may arise if the bending angle of the binding and the ski boot is too great is that the ski brake is actuated undesirably without the binding releasing and without the front end of the ski boot leaving the front retaining element.
- FIG. 1 is a perspective view of a ski binding according to one embodiment of the invention, where a ski brake is shown in the actuated and released state;
- FIG. 2 shows the same as FIG. 1 , but seen from immediately above;
- FIG. 3 is a perspective view of a ski binding like that shown in FIG. 1 , where the ski brake is shown in locked-down state;
- FIG. 4 shows the same as FIG. 3 , but seen from immediately above;
- FIG. 5 is a perspective view of the ski binding shown in FIGS. 1 and 3 , where the ski brake is in locked-down state and the movable part of the binding is rotated slightly upward;
- FIG. 6 shows the same as FIG. 5 , but seen from immediately above;
- FIG. 7 shows a ski boot that is secured in a ski binding
- FIG. 8 shows the section A-A in FIG. 7 ;
- FIG. 9 shows a ski boot secured in a ski binding, where the ski boot is bent slightly upward
- FIG. 10 shows the section A-A in FIG. 9 ;
- FIG. 11 shows a ski boot that is secured in a ski binding, where the ski boot is bent almost fully upward
- FIG. 12 shows the section A-A in FIG. 11 ;
- FIGS. 13-15 show the ski brake from the side, the top and behind, respectively.
- FIG. 16 shows the section B from FIG. 13 .
- FIGS. 1 to 12 show a ski binding 1 in accordance with one embodiment of the invention as it appears when installed on a ski (not shown) facing to the left (i.e., its tip should be envisaged to the left of the drawings and its rear end to the right).
- Some details of the binding 1 such as the mounting plate, heel plate, individual tensioning levers etc., are not shown because they can be regarded as irrelevant in this connection.
- FIGS. 1 and 2 show the binding 1 as it will appear when it is not in use and as the skier will find it when he or she gets ready to put on the ski.
- the binding 1 will appear as a hinged system where a part is mounted fixedly on a ski and another part, which comprises, inter alia, a front retaining element 11 , a flexible plastic plate 17 and a rear retaining element 15 , can more or less freely rotate about the axis of rotation 49 .
- Tensioning devices 25 will to a certain extent bias the hinged system such that the part comprising, inter alia, the front retaining element 11 , the flexible plastic plate 17 and the rear retaining element 15 , is held down against the ski, such that the hinged system appears closed.
- the ski brake 50 is also biased, which it must be in order to provide a braking effect when or if the skier falls and the ski with binding is released. It is this biasing that presses front section 55 of the ski brake 1 up through a longitudinal slot 17 a in the flexible plastic plate whilst pressing the lateral branches 57 with plastic pads 59 down.
- the skier is going to put on the binding/ski, he or she treads the front section 55 down through the longitudinal slot or opening 17 a using the front end of the ski boot, the front part of the ski boot 5 sole 7 (shown in FIGS.
- FIGS. 3 and 4 where the ski boot is not shown, and FIGS. 7 and 8 , where a part of a ski boot 5 is shown.
- Front retaining element 11 and rear retaining element 15 are then drawn together with the aid of tensioning devices suitable therefor.
- the ski binding 1 When the ski binding 1 is in walking mode and the skier tilts the ski boot 5 forward, the ski binding 1 , comprising the front retaining element 11 , the flexible plastic plate 17 and the rear retaining element, will rotate upward and forward around the axis of rotation 59 .
- FIGS. 5 and 6 without a ski boot and in FIGS. 9-12 with a part of a ski boot 5 .
- the difference between FIGS. 9 / 10 and 11 / 12 is the angle of rotation, FIGS. 11 and 12 showing a larger opening angle ⁇ .
- a circular sector 60 is also shown.
- the opening angle ⁇ becomes too large, there is a risk that the front section 55 of the ski brake 50 will follow the circular sector 60 without the sole 7 of the ski boot 5 blocking the movement of the front section 55 along the circular sector 60 .
- the effect of this is that the ski brake 50 , in some cases, can thus be actuated without the ski boot 5 being released from the binding. This is not a desirable situation, as the ski brake will brake in an undesirable manner.
- the front section 55 of the ski brake 50 may jam or become stuck under the ski boot sole, such that the ski boot cannot easily be moved back into a horizontal position again and the ski brake 50 remains actuated.
- This problem has hitherto been solved by limiting the opening angle ⁇ so that the ski boot 5 sole 7 at all times blocks the movement of the front section 55 along the circular sector 60 .
- this limitation of opening angle ⁇ also reduces to some extent the walking properties of the ski binding 1 , and it is a desired goal to increase this opening angle ⁇ in order to improve the walking properties of the ski binding, whilst maintaining its good downhill properties.
- a ski brake 1 is provided where the front section 55 is equipped with engaging means 56 that are arranged to engage with corresponding engaging means 18 in the plate or piece 17 when the opening angle ⁇ exceeds a predetermined angle.
- the front section 55 of the ski brake 50 is provided with means that prevent the ski brake 50 from being actuated when the opening angle ⁇ of the binding is larger than a predetermined appropriated angle.
- a solution of this kind ensures that it is still as easy to tread the ski brake 50 down and put on the binding, whilst the ski brake 50 remains unactuated when opening angle ⁇ is greater than the predetermined appropriate angle.
- the tensioning devices 25 will pull the front retaining element 11 , the flexible plastic plate 17 and the rear retaining element 15 down against the ski, thereby reducing the opening angle ⁇ and allowing the ski brake 50 to actuate.
- the solution according to the present invention will therefore not have an adverse effect on the braking ability or function of the ski brake 50 .
- the plate or piece 17 is shown as a flexible plastic plate 17 in the figures, it will be understood that the plate or piece 17 needs neither to be flexible nor to be of plastic. It also does not need to have the same extent or shape as shown in the figures.
- the plate or piece 17 may be a part of the front retaining element 11 , the toe piece, the rear retaining element 15 , or it may be a separate part.
- the plate or piece 17 need not comprise a longitudinal slot 17 a in order to achieve the objects of the invention.
- the plate or piece 17 must be designed to receive a front section 55 of the ski brake 50 , such that the ski brake 1 is inactive when the front section 55 is received in the plate or a piece 17 and where the ski brake 1 is activated when the front section 55 is not received in the plate or a piece 17 .
- the engaging means 56 arranged on the front section 55 comprise at least one projecting wing, lug or pin.
- said projecting wing, lug or pin 56 runs transverse to the longitudinal direction of the ski and the binding 1 .
- the corresponding engaging means 18 in the plate or piece 17 are configured as at least one edge, groove, projecting wing, lug or pin.
- the plate or piece 17 may be designed such that the ski boot 5 sole 7 bears against the front section 55 of the ski brake 50 when the opening angle ⁇ does not exceed the predetermined angle. Furthermore, the plate or piece 17 may be designed such that the engaging means 56 on the front section 55 of the ski brake 50 bears against the corresponding engaging means 18 in the plate or piece 17 when the opening angle ⁇ exceeds the predetermined angle.
- front section 55 of the ski brake 50 is provided with two projecting wings, lugs or pins 56 .
- the wings, lugs or pins 56 run transverse to the longitudinal direction of the ski and the binding 1 .
- the longitudinal slot or opening 17 a is so configured as to be able to receive the front section 55 with the two projecting wings 56 when the opening angle ⁇ is less than the predetermined appropriate angle.
- the longitudinal slot or opening 17 a behind the two projecting wings, lugs or pins 56 is configured with corresponding edges, grooves, projecting wings, lugs or pins 18 , these being designed to engage with the two projecting wings, lugs or pins 56 when the opening angle ⁇ of the binding exceeds the predetermined angle.
- the opening angle ⁇ of the binding is so small that the front section 55 of the ski brake 50 , which is provided with the two projecting wings, lugs or pins 56 , can easily slip out of the longitudinal slot or opening 17 a , past the corresponding edges, grooves, projecting wings, lugs or pins 18 .
- the opening angle ⁇ has become so large that the front section 55 of the ski brake 50 , provided with the two projecting wings, lugs, or pins 56 , cannot slip out of the longitudinal slot or opening 17 a , past the corresponding edges, grooves, projecting wings, lugs or pins 18 . There is thus no way that the ski brake 50 can be actuated when the opening angle ⁇ is larger than the predetermined appropriate angle.
- a flexible plastic plate 17 and a longitudinal slot 17 a in this flexible plastic plate 17 are shown as one piece extending between the front retaining element 11 and the rear retaining element 15 . It will be understood that the invention is not limited to such an embodiment and that the illustrated flexible plate 17 may be replaced by a plate or piece 17 which, for example, lies only under the front part of the ski boot 5 sole 7 .
- the slot or opening 17 a need not be longitudinal; it may have any other suitable configuration.
- the predetermined appropriate angle at which the engaging means 56 in the front section 55 engage with the corresponding engaging means 18 in the plate or piece 17 can be adapted as required. It can, for example, be chosen so as to allow some play or clearance in the event that snow or ice should become packed under the flexible plastic plate 17 , which may prevent the hinged system, comprising, inter alia, the front retaining element 11 , the plate or piece 17 and the rear retaining element 15 , from being brought down fully against the ski. By allowing a little play, the binding can be fastened to the boot 5 even if snow or ice has become packed under the flexible plastic plate 17 .
- the angle at which the engaging means 56 in the front section 55 engage with the corresponding engaging means 18 in the plate or piece 17 is about 4°. It will be understood that this angle can be either larger or smaller. To avoid wear on the ski boot 5 and undesirable release of the ski brake 50 , the angle should be relatively small, i.e., in the range 1-20°. If the purpose is only to avoid undesirable release of the ski brake 50 , the angle may be larger, i.e., larger than 10-20°.
- the configuration of the two wings, lugs or pins 56 , and of the edge 18 can be adapted so that the system does not offer undesirable resistance or in another way impact negatively on the bending and functional properties of the ski binding 1 .
- the configuration of the two wings, lugs or pins 56 , and of the edge 18 can also be adapted such that any snow or ice that might penetrate into open spaces around the parts can more easily be dislodged or pushed out.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
- 1 ski binding
- 5 ski boot
- 7 front part of the sole
- 7 a edge of the sole
- 7 b rear end of the sole
- 11 front retaining element (toe piece)
- 15 rear retaining element
- 17 connecting plate/plate/piece
- 17 a opening/longitudinal slot
- 18 corresponding engaging means/edge/groove/projecting wing/lug/pin
- 19 unlocking device
- 25 tensioning device
- 29 adjustment screw
- 49 fixation and rotation axle
- 50 ski brake (pivoted lever)
- 51 axle
- 53 torsion spring
- 55 front/actuating section
- 56 engaging means/wing/lug/pin
- 57 lateral branches
- 59 plastic pad
- 60 circular sector
- α opening angle
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20120037 | 2012-01-13 | ||
NO20120037A NO334063B1 (en) | 2012-01-13 | 2012-01-13 | skibrems |
PCT/IB2012/002878 WO2013104952A1 (en) | 2012-01-13 | 2012-12-21 | Ski brake |
Publications (2)
Publication Number | Publication Date |
---|---|
US20150001832A1 US20150001832A1 (en) | 2015-01-01 |
US9192847B2 true US9192847B2 (en) | 2015-11-24 |
Family
ID=47750767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/370,993 Expired - Fee Related US9192847B2 (en) | 2012-01-13 | 2012-12-21 | Ski brake |
Country Status (5)
Country | Link |
---|---|
US (1) | US9192847B2 (en) |
EP (1) | EP2802390B1 (en) |
NO (1) | NO334063B1 (en) |
RU (1) | RU2014133163A (en) |
WO (1) | WO2013104952A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000004965A1 (en) | 1998-07-22 | 2000-02-03 | Rottefella As | Ski binding, especially for cross-country skis |
DE20021684U1 (en) | 2000-12-21 | 2001-04-05 | Technisches Büro für Entwicklung und Konstruktion Reinhold Zoor, 82223 Eichenau | Safety ski binding |
WO2002089931A1 (en) | 2001-05-08 | 2002-11-14 | Rottefella As | Ski binding |
US6623027B1 (en) | 1998-06-15 | 2003-09-23 | Bryce Wheeler | Release binding and brake for telemark and cross-country skis |
WO2003101555A1 (en) | 2002-06-04 | 2003-12-11 | Rottefella As | Ski binding, particularly touring, telemark, or cross-country binding |
EP1393784A1 (en) | 2002-08-27 | 2004-03-03 | DANDURAND, Louis | Ski binding |
US7458598B2 (en) * | 2005-12-05 | 2008-12-02 | Jeffrey Giffin | Telemark binding with releasable riser plate assembly |
-
2012
- 2012-01-13 NO NO20120037A patent/NO334063B1/en unknown
- 2012-12-21 US US14/370,993 patent/US9192847B2/en not_active Expired - Fee Related
- 2012-12-21 EP EP12826648.3A patent/EP2802390B1/en not_active Not-in-force
- 2012-12-21 RU RU2014133163A patent/RU2014133163A/en not_active Application Discontinuation
- 2012-12-21 WO PCT/IB2012/002878 patent/WO2013104952A1/en active Application Filing
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6623027B1 (en) | 1998-06-15 | 2003-09-23 | Bryce Wheeler | Release binding and brake for telemark and cross-country skis |
US6644683B1 (en) | 1998-07-22 | 2003-11-11 | Rottefella As | Ski binding, especially for cross-country skis |
WO2000004965A1 (en) | 1998-07-22 | 2000-02-03 | Rottefella As | Ski binding, especially for cross-country skis |
DE20021684U1 (en) | 2000-12-21 | 2001-04-05 | Technisches Büro für Entwicklung und Konstruktion Reinhold Zoor, 82223 Eichenau | Safety ski binding |
US20040207177A1 (en) * | 2001-05-08 | 2004-10-21 | Tilo Riedel | Ski binding |
WO2002089931A1 (en) | 2001-05-08 | 2002-11-14 | Rottefella As | Ski binding |
US20070126204A1 (en) * | 2001-05-08 | 2007-06-07 | Tilo Riedel | Ski binding |
NO328592B1 (en) | 2001-05-08 | 2010-03-29 | Rottefella As | Ski Binding |
WO2003101555A1 (en) | 2002-06-04 | 2003-12-11 | Rottefella As | Ski binding, particularly touring, telemark, or cross-country binding |
US20050248128A1 (en) * | 2002-06-04 | 2005-11-10 | Bernt-Otto Hauglin | Ski binding, particularly touring, telemark, or cross-country binding |
NO326646B1 (en) | 2002-06-04 | 2009-01-26 | Rottefella As | Ski binding, especially hiking, telemark or cross-country skiing |
EP1393784A1 (en) | 2002-08-27 | 2004-03-03 | DANDURAND, Louis | Ski binding |
US20040041366A1 (en) * | 2002-08-27 | 2004-03-04 | Louis Dandurand | Ski binding |
US20040173995A1 (en) * | 2002-08-27 | 2004-09-09 | Louis Dandurand | Ski binding |
US7458598B2 (en) * | 2005-12-05 | 2008-12-02 | Jeffrey Giffin | Telemark binding with releasable riser plate assembly |
Non-Patent Citations (1)
Title |
---|
International Search Report for PCT/IB2012/002878, ISA/EP, Rijswijk, NL, mailed Apr. 25, 2013. |
Also Published As
Publication number | Publication date |
---|---|
NO20120037A1 (en) | 2013-07-15 |
NO334063B1 (en) | 2013-12-02 |
EP2802390A1 (en) | 2014-11-19 |
RU2014133163A (en) | 2016-03-10 |
WO2013104952A1 (en) | 2013-07-18 |
EP2802390B1 (en) | 2016-10-12 |
US20150001832A1 (en) | 2015-01-01 |
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Legal Events
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AS | Assignment |
Owner name: ROTTEFELLA AS, NORWAY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOLM, THOMAS;WOLLO, EVEN;PETTERSEN, AKSEL;AND OTHERS;REEL/FRAME:033930/0283 Effective date: 20140813 |
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Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20231124 |